EP2084521A2 - Assembling and utilizing rfid sensors in containers - Google Patents
Assembling and utilizing rfid sensors in containersInfo
- Publication number
- EP2084521A2 EP2084521A2 EP07873622A EP07873622A EP2084521A2 EP 2084521 A2 EP2084521 A2 EP 2084521A2 EP 07873622 A EP07873622 A EP 07873622A EP 07873622 A EP07873622 A EP 07873622A EP 2084521 A2 EP2084521 A2 EP 2084521A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- container
- layer
- film
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/54—Labware with identification means
- B01L3/545—Labware with identification means for laboratory containers
- B01L3/5457—Labware with identification means for laboratory containers for container closures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
- B01L3/5085—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates
- B01L3/50853—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above for multiple samples, e.g. microtitration plates with covers or lids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/54—Labware with identification means
- B01L3/545—Labware with identification means for laboratory containers
- B01L3/5453—Labware with identification means for laboratory containers for test tubes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/021—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance before and after chemical transformation of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/14—Process control and prevention of errors
- B01L2200/143—Quality control, feedback systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/02—Identification, exchange or storage of information
- B01L2300/021—Identification, e.g. bar codes
- B01L2300/022—Transponder chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/04—Closures and closing means
- B01L2300/046—Function or devices integrated in the closure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/06—Auxiliary integrated devices, integrated components
- B01L2300/0627—Sensor or part of a sensor is integrated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0887—Laminated structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Definitions
- This invention relates to a system for assembling and utilizing sensors in containers.
- the present invention has been accomplished in view of the above-mentioned technical background, and it is an object of the present invention to provide a system and method for assembling and utilizing sensors in a container.
- a container has a solution.
- a protective layer is deposited over at least one sensor and at least one wall of the container, where the protective layer is attached to the wall of the container to form a seal between the container and the at least one sensor.
- the at least one sensor is configured to have an operable electromagnetic field based on a thickness of the container and the protective layer.
- the at least one sensor in conjunction with a digital identification tag is in proximity to an impedance analyzer and a reader that constitute a measurement device.
- the at least one sensor is configured to determine at least one parameter of the solution.
- the tag is configured to provide a digital ID associated with the at least one sensor, where the container is in proximity to the reader and an impedance analyzer.
- the impedance analyzer is configured to receive a given range of frequencies from the at least one sensor based on the parameter and calculate parameter changes based on the measured complex impedance over the given range of frequencies.
- a method for assembling a system for measuring parameters is disclosed.
- At least one sensor is provided, where the at least one sensor is placed in between a first layer of film and a second layer of film.
- the first layer of film and the second layer of film are provided with a certain thickness, where the at least one sensor is configured to have an operable electromagnetic field.
- the second layer is formed over the at least one sensor into the first layer, where the second layer is formed over the at least one sensor into the first layer to embed the at least one sensor into the first layer.
- a third layer of film is provided, where the third of layer of film is formed into the first layer of film that is configured to form a container with the third layer of film.
- a solution is provided into the container, where the first layer of film and the at least one sensor are configured to measure at least one parameter of the solution.
- FIG. 1 illustrates a block diagram of a system for assembling and utilizing sensors in a container in accordance with an embodiment of the invention
- FIGs. 2A and 2B illustrate the sensor embedded into the container in accordance with an embodiment of the invention
- FIG. 3 illustrates an exploded view of the radio frequency identification (RFID) tag of FIG. 1 in accordance with the invention
- FIGs. 4A, 4B, 4C and 4D are schematic diagrams of circuitry for RFID systems constructed in accordance with the invention.
- FIG. 5 depicts a flow chart of how the sensors are incorporated into the container by employing ultrasound welding in accordance with the invention
- FIG. 6 depicts a flow chart of how the sensors are incorporated into the container by employing radio frequency welding in accordance with the invention
- FIG. 7 depicts a flow chart of how the sensors are incorporated into the container by employing heat lamination in accordance with the invention
- FIG. 8 depicts a flow chart of how the sensors are incorporated into the container by employing hot plate welding in accordance with the invention
- FIG. 9 depicts a flow chart of how the sensors are incorporated into the container by employing injection mold thermoplastics in accordance with the invention.
- FIGs. 1OA and 1OB illustrate a sensor in silicon tubing in accordance with the invention
- FIG. 11 shows an example of sensors in accordance with the invention
- FIG. 12 illustrates an example of measuring the sensor in accordance with the invention
- FIG. 13 is a graphical representation of a dynamic response and response magnitude from FIG. 12 in accordance with the invention.
- FIG. 14 is a graphical illustration of a calibration curve of FIG. 12 in accordance with the invention.
- FIG. 1 illustrates a block diagram of a system for measuring parameters in a container.
- the system 100 includes a container 101, a tag 102 and a sensor 103 on the tag 102, a reader 106, an impedance analyzer 108, a standard computer 109 and a measurement device 111.
- Measurement device 111 includes the reader 106 and the impedance analyzer 108.
- Impedance analyzer 108 includes a pickup antenna 108a, which excites the plurality of RFID sensors in the array 103 and the pickup antenna 108a collects a reflected radio frequency signal from the plurality of RFID sensors in the arrays 103.
- the tag 102 and the sensor 103 are incorporated or integrated into the container 101.
- sensors 103 or a plurality of sensors 103 may be formed on the tag 102 in an array format.
- the sensor 103 or sensor array 103 is incorporated into container 101, which is connected by a wireless connection or an electrical wire connection to the impedance analyzer 108 and the computer 109.
- the sensor 103 or sensor array 103, the tag 102 are connected by a wireless connection or an electrical wire to the measurement device 111 and the computer 109.
- Impedance analyzer 108 is connected by a wireless connection or an electrical wire connection to the computer 109. Referring to FIGs.
- container 101 may be a disposable bio- processing container, a stainless steel container, a plastic container, a polymeric material container, a chromatography device, a filtration device, a chromatography device with any associated transfer conduits, a filtration device with any associated transfer conduits, centrifuge device, centrifuge device with any associated transfer conduits, a pre-sterilized polymeric material container or any type of container known to those of ordinary skill in the art.
- the biological container 101 is preferably made from but not limited to the following materials, alone or in any combination as a multi-layer film: ethylene vinyl acetate (EVA) low or very low-density polyethylene (LDPE or VLDPE) ethyl-vinyl-alcohol (EVOH) polypropylene (PP), polyethylene, low-density polyethylene, ultra- low density polyethylene, polyester, polyamid, polycarbontate, elastomeric materials all of which are well known in the art.
- RFID tags typically comprise front antennas and microchip with a plastic backing (e.g., polyester, polyimide etc).
- the container 101 may be made of a multilayer bio-processing film, made from one manufacturer.
- the manufacturer may be Hyclone located in Logan, Utah, for example HyQ® CX5-14 film and HYQ® CX3-9 film.
- the CX5-14 film is a 5 -layer, 14 mil cast film.
- the outer layer of this film is made of a polyester elastomer coextruded with an EVOH barrier layer and an ultra-low density polyethylene product contact layer.
- the CX3-9 film is a 3 -layer, 9mil cast film.
- the outer layer of this film is a polyester elastomer coextruded with an ultra- low density polyethylene product contact layer.
- the aforementioned films may be further converted into disposable bio-processing components in a variety of geometries and configurations all of which can hold a solution 101a.
- the container 101 may be a polymer material incorporated into a filtration device. Further, the container 101 may include or contain a chromatographic matrix.
- Container 101 may also be a vessel that contains a fluid such as liquid or gas, where the vessel can have an input and an output. Further, container 101 can have a liquid flow or no liquid flow. Furthermore, container 101 can be a bag or a tube, or pipe, or hose.
- the solution 101a may also be referred to as a bio-processing fluid. Inside the container 101 is the solution 101a. Solution 101a in the container 101 may be stored or for transfer.
- the solution 101a may be a liquid, fluid or gas, a solid, a paste or a combination of liquid and solid.
- the solution 101a may be blood, water, a biological buffer or gas.
- the solution 101a may contain toxic industrial material, chemical warfare agent, gas, vapors or explosives disease marker in exhaled breath, bio-pathogen in water, virus, bacteria and other pathogens.
- solution 101a is blood it may contain various materials such as creatinine, urea, lactate dehydrognease, alkaline phosphate, potassium, total protein, sodium, uric acid, dissolved gases and vapors, such as CO 2 , O 2 , NO x , ethanol, methanol, halothane, benzene, chloroform, toluene, chemical warfare agents, vapor, living tissue, fractionated from a biological fluid, vaccine or explosives and the like.
- materials such as creatinine, urea, lactate dehydrognease, alkaline phosphate, potassium, total protein, sodium, uric acid, dissolved gases and vapors, such as CO 2 , O 2 , NO x , ethanol, methanol, halothane, benzene, chloroform, toluene, chemical warfare agents, vapor, living tissue, fractionated from a biological fluid, vaccine or explosives and the like.
- the solution 101a is a gas or vapor, it may be CO 2 , O 2 , NO x , ethanol, methanol, halothane, benzene, chloroform toluene or chemical warfare agent.
- the solution 101a is a toxic industrial agent that can be inhaled and dissolved in blood then in may be ammonia, acetone cyanohydrin, arsenic tricholoride, chlorine, carbonyl sulfide or the like.
- the solution 101a is a chemical war agent it may be Tabun, Sarin, Soman, Vx, blister agents, Mustard gas, choking agent or a blood agent.
- the solution 101a is a disease marker in exhaled breath it may be acetaldehyde, acetone, carbon monoxide and the like. If the solution 101a includes a bio-pathogen then it may be anthrax, brucellosis, shigella, tularemia or the like. Further, the solution 101a in the container may include prokaryotic and eukaryotic cells to express proteins, recombinant proteins, virus, plasmids, vaccines, bacteria, virus, living tissue and the like.
- Container 101 may have many structures, for example, a single biological cell, a micro fluidic channel, a micro titer plate, a Petri dish, a glove box, a hood, a walk-in hood, a room in a building or a building.
- container 101 can be of any size where sensor 103 and tag 102 are incorporated into the container 101 where they are positioned to measure the environment in the container 101 or the solution 101a in the container 101.
- the sensor array 103 is embedded, integrated or incorporated to a wall 101b of the container 101 by any of the various processes described in FIGs. 5-9, such as ultrasonic welding, dielectric welding (also known as high frequency (HF) welding or radio frequency (RF) welding), laser welding, hot Plate welding, hot knife welding, induction/impulse, insert molding, in-mold decoration and the other standard types of material welding and joining methods known to those of ordinary skill in the art.
- the aforementioned processes are also utilized to deposit a protective layer 105 onto the sensor 103 as shown in FIGs. 2A and 2B.
- Protective layer 105 may be a barrier layer, a semi-permeable layer, or a perm-selective layer. This protective layer 105 is used to prevent the components of the sensor 103 and optional sensor coating 107, located in between the protective layer 105 and the sensor 103 (FIG. 2B) from discharging into the environment of the container 101 and keeps the solution 101a from corroding the sensor 103 that allows for the proper chemical or biological recognition of the embedded sensor 103. Also, the protective layer 105 prevents the bio-processing fluid (solution 101a) from contamination caused by any leachable or extractable that is present in the RFID sensor 103. The sensor coating 107 is selected for proper chemical or biological recognition.
- the typical sensor coating or film 107 is a polymer, organic, inorganic, biological, composite, or nano-composite film that changes its electrical property based on the solution 101a that it is placed in.
- the sensor film (or sensing coating) 107 may be a hydrogel such as (poly-(2-hydroxyethyl) methacrylate, a sulfonated polymer such as Nafion ® , , which is a registered trademark of DuPont located in Wilmington, DE, an adhesive polymer such as silicone adhesive, an inorganic film such as sol-gel film, a composite film such as carbon black- polyisobutylene film, a nanocomposite film such as carbon nanotube-Nafion ® film, gold nanoparticle-hydrogel film, electrospun polymer nanofibers, metal nanoparticle hydrogen film electrospun inorganic nanofibers, electrospun composite nanofibers, and any other sensor material.
- a hydrogel such as (poly-(2-hydroxyethyl)
- the sensor film 107 may be deposited onto the sensor 103 by ink-jet printing, screen printing, chemical deposition, vapor deposition, spraying, draw coating, wet solvent coating, roll-to-roll coating, slot die, gravure coating, roll coating, dip coating etc.
- the sensor materials are attached to the surface of the plurality of sensors array 103 using the standard techniques, such as ion pairing, covalent bonding, electrostatic bonding and other standard techniques known to those of ordinary skill in the art.
- the thickness of the protective layer 105 is in a range of 1 nanometers to 300mm.
- the thickness of the wall 101b is in a range of 5 nanometers to 50 cm.
- the wall 101b has a thickness of 10 cm. More preferably, the wall 101b has a thickness of 5 cm or even more preferably, the wall 101b has a thickness of lcm. However, if in-mold- decoration/injection molding is used to make 3-D container with embedded sensor, the wall thickness could be significantly higher, for example up to 10cm. This thickness for the protective layer 105 and the wall 101b is necessary for the electro-magnetic field surrounding the sensor 103 to be operable and retained while it is within the container 101.
- a wireless integration of the sensor 103 with an impedance analyzer 108 occurs when an electromagnetic field that is generated around the sensor 103 when the impedance analyzer 108 is in proximity to the sensor 103.
- the electromagnetic field extends out of the plane of sensor 103 into the direction of wall 101b and protective layer 105.
- Pickup antenna 108a excites the RFID sensor 103.
- pickup antenna 108a is arranged on the opposite side of wall 101b from sensor 103.
- pickup antenna 108a in proximity to the sensor 103 is arranged on the opposite side of protective layer 105 from sensor 103.
- the pick-up antenna 108a may be attached or connected to the container 101 in several ways: 1. the pick- up antenna is mechanically attached to the container 101, 2. the pick-up antenna is chemically attached to the container by any typical chemical means, such as an adhesive, and 3. the pick-up antenna 108a is attached to the container 101 by gravity. In another embodiment of the invention, the pick-up antenna 108a is attached to container 101 without electrical contact with the sensor 103. The signal from the sensor 103 will be attenuated upon an increase of the distance between sensor 103 and the pickup antenna 108a.
- the signal from the sensor 103 will be changed, in general attenuated upon an increase of the conductivity of material that is positioned between sensor 103 and pickup antenna 108a.
- the smaller the thickness of the wall 101b or protective layer 105 the larger the signal will be from the sensor 103.
- the pick-up antenna 108a is attached to the container 101.
- portions of the outer surface of the container 101 are modified in the region where the RFID sensor 103 is embedded, so the pick-up antenna 108a for the sensor 103 has a better stability control (position, tilt, etc.).
- portions of the outer surface of the container 101 are modified in the region where the RFID sensor 103 is embedded, so the pick-up antenna 108a for the sensor 103 has a better stability control by using mechanical connections
- portions of the outer surface of the container 101 are modified in the region where the RFID sensor 103 is embedded, so the pick-up antenna 108a for the sensor 103 has a better stability control by using an adhesive material so the pickup antenna 108a connects into its appropriate position on the container 101.
- portions of the outer surface of the container 101 are modified in the region where the RFID sensor 103 is embedded, so the pickup antenna 108a for the sensor 103 has a better stability control by using the gravity force of the pick-up antenna 108a to better connect it into its appropriate position on the container 101.
- Other connection methods that do not use a galvanic or direct connection of wires between the pickup antenna 108a and sensor 103 can be used by those of ordinary skilled in the art.
- Sensor 103 is covered by the protective layer 105 and the sensor coating 107. If the aforementioned thicknesses of the protective layer 105 and the wall 101b are not adhered to then the electromagnetic field surrounding the sensor 103 will decay and the sensor 103 will not be able to measure parameters of the solution 101.
- the edges of the protective layer 105 are permanently attached, for example by welding or lamination to the wall 101b of the container 101 to form a tight seal.
- the container 101 also known as the disposable bio-processing system with the embedded sensor or sensor arrays 103 meet the requirements of biocompatibility, sterilizability, mechanical toughness, elasticity, and low leachability.
- This protective layer may also include dense plastic films, membranes, microporous layers, mesoporous layers, such as expanded Polytetrafluoroethylene PTFE (e-PTFE), nanofiltration and ultrafiltration membranes, can also be used as protective layer or perm-selective layer to reduce bio-fouling, concentrate the species to be detected and to provide corrosion resistance for the sensor 103 components.
- e-PTFE expanded Polytetrafluoroethylene PTFE
- the protective layer 105 is a conductive polymer film.
- the protective layer 105 may be a composite film that may include a filled polymer, polymer blend and alloy. This composite film has the desired electric constant, electrical conductivity, thermal conductivity, permeability of dissolved gases such as oxygen and CO 2 .
- Reader 106 is located in the measurement device 111 outside of the container 101.
- An antenna 301 (FIG. 3) of tag 102 when covered by a polymer inorganic, composite or other type of film nano fiber mesh or nanostructured coating is the sensor 103 or the sensor array 103.
- Plurality of sensors in an array 103 can be a typical sensor or typical sensor array known to those of ordinary skill in the art or the plurality of sensors in an array may be radio frequency identification (RFID) sensors array 103.
- RFID sensors in the array 103 are devices that are responsible for creating a useful signal based on a parameter from the solution 101a.
- the parameters include conductivity measurement, pH level, temperature, blood relevant measurement, pressure measurement, ionic measurement, non ionic measurement, non-conductivity, material deposition such as biological deposition, protein deposition, bacterial deposition, cell deposition, virus deposition, inorganic deposition such as calcium deposition, electromagnetic radiation level measurement, pressure and other types of measurements that may be taken from a typical solution.
- the parameters include measurements of physical, chemical, or biological properties of solutions as a function of time are important for a variety of applications. These measurements provide the useful information about reaction kinetics, binding kinetics, leaching effects, aging effects, extractables effects, diffusion effects, recovery effects, and other kinetic effects.
- the plurality of sensors in the array 103 are covered or wrapped in a typical sensor film 107 discussed above that enables it to obtain parameters of the solution 101a.
- Each of the plurality of RFID sensors in the array 103 may measure the parameter individually or each sensor 103 may measure all of the parameters in the solution 101a.
- a sensor array of RFID sensor array 103 may only measure temperature of solution 101a or the sensor array of the plurality of RFID sensor array 103 may measure the conductivity, the pH and the temperature of the solution 101a.
- the plurality of RFID sensors in the array 103 is transponders that include a receiver to receive signals and a transmitter to transmit signals.
- the sensor 103 may act as a typical RFID sensor that is passive, semi-active or active.
- the sensor 103 may be gamma- radiated by the standard gamma radiation process.
- FIG. 3 illustrates a radio frequency identification (RFID) tag.
- the RFID tag 102 may also be referred to as a wireless sensor.
- RFID tag 102 includes a substrate 303 upon which are disposed on an antenna 301 and a identification chip 305.
- a wide variety of commercially available tags can be applied for the deposition of sensor structures. These tags operate at different frequencies ranging from about 125 kHz to about 2.4 GHz. Suitable tags are available from different suppliers and distributors, such as Texas Instruments, TagSys, Digi Key, Amtel, Hitachi and others.
- the tag may be one of the following class of sensor technology, Sensor Single Parameter Radio Frequency (SSP RF ) and Sensor Multi-Parameter Radio Frequency (SMP RF ).
- SSP RF Sensor Single Parameter Radio Frequency
- SMP RF Sensor Multi-Parameter Radio Frequency
- Suitable tags can operate in passive, semi-passive and active modes.
- the passive RFID tag does not need a power source for operation, while the semi-passive and active RFID tags rely on the use of onboard power for their operation.
- RFID tag 102 has a digital ID stored in a chip 305 and the frequency response of the antenna circuit of the RFID tag 102 can be measured as the complex impedance with real and imaginary parts of the complex impedance.
- the RFID tag 102 may be a transponder, which is an automatic device that receives, amplifies and retransmits a signal on a different frequency. Further, the RFID tag 102 may be another type of transponder that transmits a predetermined message in response to a predefined received signal.
- This RFID tag 102 is equivalent to the variety of RFID tags disclosed in "Chemical and Biological Sensors, Systems and Methods Based on Radio Frequency Identification” filed on October 26, 2005 with a serial number US 11/259,710 and “Systems and Method for Monitoring Parameters in Containers” filed on September 28, 2006 with a serial number PCT/US2006/038198 and US
- Antenna 301 is an integrated part of the sensor 103.
- Plurality of RFID sensors 103 are located at approximately at a distance of 0.1-100 cm from the reader 105 and impedance analyzer 107.
- the RFID antenna 301 includes chemical or biological sensitive materials 307 used as part of the antenna material to modulate antenna properties. These chemical and biological materials are conductive sensitive materials such as inorganic, polymeric, composite sensor materials and the like.
- the composite sensor materials include a base material that is blended with conductive soluble or insoluble additive. This additive is in the form of particles, fibers, flakes, and other forms that provide electrical conductance.
- the RFID antenna 301 includes chemical or biological sensitive materials used as part of the antenna material to modulate antenna electrical properties.
- the chemical or biological sensitive materials are deposited on the RFID antenna 301 by arraying, ink-jet printing, screen printing, vapor deposition, spraying, draw coating, and other typical depositions known to those of ordinary skill in the art.
- the chemical or biological material covering the antenna 301 may be a material that is selected to shrink or swell upon temperature changes.
- This type of sensor material may contain an additive that is electrically conductive.
- the additive may be in the form of micro particles or nano-particles, for example carbon black powder, or carbon nano-tubes or metal nano-particles.
- some physical parameters such as temperature, pressure, conductivity of solution, and others are measured without coating the sensor 103 with the sensing film 307. These measurements rely on the changes of the antenna properties as a function of physical parameter without having the sensing film 307 applied onto the sensor 103.
- circuitry contained on the wireless sensor may utilize power from the illuminating RF energy to drive a high Q resonant circuit, such as the circuit 403 within the capacitance based sensor 401 illustrated in FIG. 4A.
- the high Q resonant circuit 403 has a frequency of oscillation determined by the sensor 401 or sensor 103 incorporates a capacitor whose capacitance varies with the sensed quantity.
- the illuminating RF energy may be varied in frequency, and the reflected energy of the sensor is observed.
- a resonant frequency of the circuit 403 is determined.
- the resonant frequency may then be converted into a parameter, discussed above, of the sensor 401 or 103.
- illuminating RF energy is pulsed at a certain repetitive frequency close to the resonant frequency of a high Q oscillator.
- the pulsed energy is rectified in a wireless sensor 401 or 103 (FIG. 1) and is used to drive a high Q resonant circuit 407 having a resonant frequency of oscillation determined by the sensor 405 to which it is connected.
- the pulsed RF energy is stopped and a steady level of illuminating RF energy is transmitted.
- the high Q resonant circuit 407 is used to modulate the impedance of the antenna 409 using the energy stored in the high Q resonant circuit 407.
- FIG. 4C illustrates another embodiment of wireless sensors used for driving high Q resonant circuits.
- FIG. 4D illustrates a wireless sensor that may include both a resonant antenna circuit and a sensor resonant circuit, which may include an LC tank circuit.
- the resonant frequency of the antenna circuit is a higher frequency than the resonant frequency of the sensor circuit, for example, as much as four to 1000 times higher.
- the sensor circuit has a resonant frequency that may vary with some sensed environmental condition.
- the two resonant circuits may be connected in such a way that when alternating current (AC) energy is received by the antenna resonant circuit, it applies direct current energy to the sensor resonant circuit.
- the AC energy may be supplied through the use of a diode and a capacitor, and the AC energy may be transmitted to the sensor resonant circuit through the LC tank circuit through either a tap within the L of the LC tank circuit or a tap within the C of the LC tank circuit.
- the two resonant circuits may be connected such that voltage from the sensor resonant circuit may change the impedance of the antenna resonant circuit.
- the modulation of the impedance of the antenna circuit may be accomplished through the use of a transistor, for example a FET (field-effect transistor).
- illuminating radio frequency (RF) energy is pulsed at a certain repetitive frequency.
- the pulsed energy is rectified in a wireless sensor (FIGS. 4A- 4D) and is used to drive a high Q resonant circuit having a resonant frequency of oscillation determined by the sensor to which it is connected.
- the pulsed RF energy is stopped and a steady level of illuminating RF energy is transmitted.
- the resonant circuit is used to modulate the impedance of the antenna using the energy stored in the high Q resonant circuit.
- a reflected RF signal is received and examined for sidebands. The process is repeated for multiple different pulse repetition frequencies.
- the pulse repetition frequency that maximizes the amplitude of the sidebands of the returned signal is determined to be the resonant frequency of the resonant circuit.
- the resonant frequency is then converted into a parameter or measurement on the resonant circuit.
- RFID tag 102 below the RFID tag 102 is an RFID reader 106 and impedance analyzer 108 (measurement device 111) which provides information about real and complex impedance of the RFID tag 102 based on reading the information from the RFID antenna 301.
- the RFID reader 106 may be a Model M- 1 , Skyetek, CO, which is operated under a computer control using the software Lab VIEW. Also, the reader 106 reads the digital ID from the RFID tag 102.
- the reader 106 may also be referred to as a radio frequency identification (RFID) reader.
- RFID tag 102 is connected by a wireless connection or an electrical wire to the RFID reader 106 and the impedance analyzer 108.
- the RFID reader 106 and the impedance analyzer 108 are connected by a wireless or electrical wire connection to the standard computer 109.
- This system may operate in 3 ways that include: 1. the read system of the RFID reader 106, where the RFID reader 106 will read information from the plurality of RFID sensors array 103 to obtain chemical or biological information and the RFID reader 106 that reads the digital ID of the RFID tag 102; 2. the RFID reader 106 reads the digital ID of the RFID tag 102 and the impedance analyzer 108 reads the antenna 301 to obtain the complex impedance; and 3.
- the RFID reader 106 will read information from the plurality of RFID sensors array 103 to obtain chemical or biological information and the RFID reader 106 reader reads the digital ID of the RFID tag 102 and the impedance analyzer 108 reads the antenna 301 to obtain the complex impedance.
- Measurement device 111 or computer 109 includes a pattern recognition subcomponent (not shown).
- Pattern recognition techniques are included in the pattern recognition subcomponent. These pattern recognition techniques on collected signals from each of the sensor 103 or the plurality of RFID sensors in the array 103 may be utilized to find similarities and differences between measured data points. This approach provides a technique for warning of the occurrence of abnormalities in the measured data. These techniques can reveal correlated patterns in large data sets, can determine the structural relationship among screening hits, and can significantly reduce data dimensionality to make it more manageable in the database.
- Methods of pattern recognition include principal component analysis (PCA), hierarchical cluster analysis (HCA), soft independent modeling of class analogies (SIMCA), neural networks and other methods of pattern recognition known to those of ordinary skill in the art.
- the distance between the reader 106 and the plurality of RFID sensors in the array 103 or sensor 103 is kept constant or can be variable.
- the impedance analyzer 108 or the measurement device 111 periodically measures the reflected radio frequency (RF) signal from the plurality of RFID sensors in the array 103.
- Periodic measurements from the same sensor 103 or the plurality of RFID sensors in the array 103 provide information about the rate of change of a sensor signal, which is related to the status of the chemical/biological/physical environment surrounding the plurality of RFID sensors in the array 103.
- the measurement device 111 is able to read and quantify the intensity of the signal from the plurality of RFID sensors in the array 103.
- the impedance analyzer 108 In proximity of the RFID reader 106 is the impedance analyzer 108, which is an instrument used to analyze the frequency-dependent properties of electrical networks, especially those properties associated with reflection and transmission of electrical signals.
- the impedance analyzer 108 may be a laboratory equipment or a portable specially made device that scans across a given range of frequencies to measure both real and imaginary parts of the complex impedance of the resonant antenna 301 circuit of the RFID tag 102.
- this impedance analyzer 108 includes database of frequencies for various materials associated with the solution 101a described above.
- this impedance analyzer 108 can be a network analyzer (for example Hewlett Packard 875 IA or Agilent E5062A) or a precision impedance analyzer (Agilent 4249A).
- Computer 109 is a typical computer that includes: a processor, an input/output (I/O) controller, a mass storage, a memory, a video adapter, a connection interface and a system bus that operatively, electrically or wirelessly, couples the aforementioned systems components to the processor. Also, the system bus, electrically or wirelessly, operatively couples typical computer system components to the processor.
- the processor may be referred to as a processing unit, a central processing unit (CPU), a plurality of processing units or a parallel processing unit.
- System bus may be a typical bus associated with a conventional computer.
- Memory includes a read only memory (ROM) and a random access memory (RAM).
- ROM includes a typical input/output system including basic routines, which assists in transferring information between components of the computer during start-up.
- the memory is the mass storage, which includes: l.a hard disk drive component for reading from and writing to a hard disk and a hard disk drive interface, 2. a magnetic disk drive and a hard disk drive interface and 3. an optical disk drive for reading from or writing to a removable optical disk such as a CD- ROM or other optical media and an optical disk drive interface (not shown).
- the aforementioned drives and their associated computer readable media provide non- volatile storage of computer-readable instructions, data structures, program modules and other data for the computer 109.
- the aforementioned drives may include the algorithm, software or equation that has the technical innovation of obtaining the parameters for the solution 101a, which will be described in the flow charts of FIG. 5-9 that works with the processor of computer 109.
- the computer 109 also includes a Lab VIEW software that collects data from the complex impedance response from the tag 102. Also, the computer 109 includes a KaliedaGraph software from Synergy Software in Reading PA and PLS_ Toolbox software from Eigenvector research, Inc., in Manson, WA operated with Matlab software from the Mathworks Inc., Natick, MA to analyze the data received. In another embodiment, the obtained parameters of the solution 101a algorithm, software or equation may be stored in the processor, memory or any other part of the computer 109 known to those of ordinary skill in the art.
- FIG. 5 is a flow chart that depicts how the sensors are incorporated into the container by employing an ultrasound welding method.
- a layer or film of the container 101 (FIG. 1) is cut into a desired dimension.
- the layer, film or wall 101b (FIG. 2) of the container 101 as described above may have multi-layers and be made of various types of materials. Wall 101b may also be referred to as a first layer of film 101b.
- the film 101b of container 101 may be cut by any type of cutting device such as a knife, pair or scissors or any standard cutting device or automated cutting device known to those of ordinary skill in the art.
- Container 101 may have many various structures, as stated above, such as a Petri dish or a micro titer plate or any other type of structure.
- the dimensions of this cut film 101b of container may have a length and width in a range of Ix lmm to 6x6 inches or more depending upon the end applications and size of the sensor 103 (FIG. 1).
- the size of the dimensions of this cut film 101b is approximately one wall size of the container 101.
- the protective layer film 105 (FIG. 2) is cut by the aforementioned typical cutting device.
- the protective layer film 105 as described above, may be made of different types of materials, such as PTFE.
- Protective layer film 105 is cut into dimensions smaller than the cut film of container 101, and preferably larger than the sensor 103.
- the dimensions of the protective layer film 105 may have a range of .08x.08 mm to 3x3 inches or more depending on the size of the sensor 103 or the wall 101b.
- the protective layer film 105 may be referred to as a second layer of film 105.
- the sensor 103 is placed or stacked in between the wall 101b and the protective layer film 105.
- the sensor 103 is placed in between a middle portion of wall 101b and the protective layer film 105.
- an optional sensor coating 107 is pre-deposited on the sensor or cut by the aforementioned cutting methods where the dimensions are smaller than the protective layer film 105. Then the optional sensor coating 107 is placed in between the sensor 103 and the protective layer film 105.
- Optional sensor coating 107 may be considered a fourth layer of film.
- the protective layer of film 105 or the sensor coating 107 may be the only layer film deposited over the sensor 103.
- an ultrasonic welding process is utilized to compress the protective layer 105, optional sensing coating 107 over the sensor 103 into the wall 101b.
- the typical ultrasonic welding process utilizes a typical titanium or aluminum component called a horn or sonotrode that is brought into contact with the protective layer 105.
- a controlled pressure from the typical horn is applied to the protective layer 105, optional sensing coating 107, over the sensor 103 and the wall 101b clamping these components together.
- the horn vibrates vertically at a rate of 20,000 Hz (20 kHz) or 40,000 Hz (40 kHz) times per second, at distances measured in thousands of an inch (microns), for a predetermined amount of time typically called weld time.
- the mechanical vibrations are transmitted through the protective layer 105 to the joint surfaces between the protective layer 105, optional sensing coating 107, sensor 103 and wall 101b to create frictional heat.
- the vibration is stopped, which allows the melted plastic of these components to begin cooling.
- the clamping force of the typical horn is maintained for a predetermined amount of time, for example 30 seconds to 3 hours to allow the parts to fuse as the melted plastic of the protective layer 105 and wall 101b cools and solidifies, which is known as hold time.
- a higher force of pressure may be applied during this hold time to further hold the components together.
- the typical horn is retracted from the combined protective layer 105, sensing coating 107, sensor 103 and wall 101b.
- another wall 101c or a multi-layer film or a third layer of film is ultrasound- welded by the horn process forming the container 101, as stated above, onto the combination protective layer 105, optional sensing coating 107, sensor 103 and wall 101b.
- this wall 101c has the same dimensions as wall 101b so peripheral edges of wall 101c are hermetically sealed onto the peripheral edges of wall 101b.
- One tube or a plurality of tubes are inserted between walls 101b and 101c, and ultrasound- welded by using the typical horn process described above to join the plurality of tubes into the wall 101b and 101c, and then this process ends. These tubes represent a means for a solution 101a to be inserted and removed from the container 101.
- FIG. 6 is a flow chart that depicts how the sensors are incorporated into the container by employing a radiofrequency (RF) welding method.
- RF radiofrequency
- the processes in blocks 601, 603 and 605 are the same as in respective blocks 501, 503 and 505 so a description of these processes will not be disclosed herein.
- a typical plastic welder is utilized to melt the protective layer 105, optional sensor coating 107 and sensor 103 onto the wall 101b (FIG. 2).
- the typical plastic welder includes a radio frequency generator (which creates the radio frequency current), a pneumatic press, an electrode that transfers the radio frequency current to the protective layer 105, optional sensor coating 107, sensor 103 and wall 101b that is being welded and a welding bench that holds the aforementioned components in place.
- a radio frequency generator which creates the radio frequency current
- pneumatic press an electrode that transfers the radio frequency current to the protective layer 105
- optional sensor coating 107 optional sensor coating 107
- sensor 103 and wall 101b that is being welded
- a welding bench that holds the aforementioned components in place.
- plastic welders that may be used for radiofrequency welding such as tarpaulin machines, garment machines and automated machines.
- the aforementioned machine's tuning can be regulated to adjust its field strength to the material being welded.
- another wall 101c or multi-layer film is radiofrequency welded forming container 101, as in block 607, onto the combination protective layer 105, optional sensing coating 107, sensor 103 and wall 101b.
- this wall 101c has the same dimensions as wall 101b so peripheral edges of wall 101c are hermetically sealed onto the peripheral edges of wall 101b.
- One tube or a plurality of tubes are inserted between walls 101b and 101c, and RF -welded to join the plurality of tubes into the wall 101b and 101c, and then this process ends.
- These tubes represent a means for a solution 101a to be inserted and removed from the container 101.
- the welding of the peripheral edges and the plurality of tubes could either occur at separate steps or in the same process step.
- FIG. 7 is a flow chart that depicts how the sensors are incorporated into the container by a heat lamination method.
- the processes in blocks 701, 703 and 705 are the same as in respective blocks 501, 503 and 505 so a description of these processes will not be disclosed herein.
- a user utilizes a typical lamination device, such as Carver Lamination Press manufactured by Carver Inc. in Wabash, IN, a MaxiLam Heat Laminator manufactured by K-Sun in Scottsdale, AZ, or a heat staking machine provided by PSA at Benthany, CT to melt the protective layer 105, optional sensor coating 107 and sensor 103 onto the wall 101b (FIG. 2).
- a typical lamination device such as Carver Lamination Press manufactured by Carver Inc. in Wabash, IN, a MaxiLam Heat Laminator manufactured by K-Sun in Scottsdale, AZ, or a heat staking machine provided by PSA at Benthany, CT to melt the protective layer 105, optional sensor coating 107 and sensor
- the RFID tag 102 with a nominal frequency of 13.5 MHz of sensor 103 is laminated to the interior of the multi-layer wall 101b of container 101, such as ULDPE layer of a 5 -L LabtainerTM Bioprocess Container a HyQ ® CX5-14 film made by HyClone, purchased from Aldrich.
- This CX5-14 film is a 5-layer, 14 mil cast film.
- the outer layer of the wall 101b includes a polyester elastomer coextruded with an EVOH barrier layer and an ultra- low density polyethylene layer.
- the protective layer 105 is a brown 4 mil thick ultra-low density polyethylene monolayer film (HyQ ® BMl film made by HyClone, purchased from Aldrich).
- the actual laminating or embedding process occurs by laminating the protective layer 105, optional sensor coating 107 and the wall 101b, with the RFID sensor 103 sandwiched in between container wall film 101b and protective film 105 in a typical Carver lamination press.
- the Carver press utilizes a frame that is slightly larger than the RFID sensor 103 to prevent the Carver press from providing direct pressure on the sensor 103.
- the frame is made of aluminum and coated with Teflon for easy release.
- the frame may have any shape, but for this example it has a rectangular frame with any type of dimensions, for example a dimension of 50x70mm with a hollow inside of the dimension of 40x50mm and a thickness of .7mm.
- the Carver press kept a steady temperature of 140 degrees Celsius.
- the sandwiched structure with the frame was then moved inside the Carver press with minimum pressure and kept for 1 minute, and then kept at 2000 lbs force for 30 seconds.
- the laminated structure of the protective layer 105, optional sensor coating 107 and the wall 101b are transferred to a cold press.
- another wall 101c or multi-layer film is laminated and cold pressed forming container 101, as in block 707, onto the combination protective layer 105, sensing coating 107, sensor 103 and wall 101b.
- this wall 101c has the same dimensions as wall 101b so peripheral edges of wall 101c are hermetically sealed onto the peripheral edges of wall 101b.
- FIG. 11 depicts an example of three laminated RFID sensors and one RFID sensor without lamination.
- the three RFID sensors 1111, 1113 and 1115 are equivalent to sensor 103 so a description of sensors 1111, 1113 and 1115 will not be disclosed herein.
- RFID sensors 1111, 1113 and 1115 are laminated into a wall 101b made of polypropylene of the container 101.
- a RFID sensor 1117 is not laminated into a container 101.
- FIG. 8 is a flow chart that depicts how the sensors are incorporated into the container by employing a hot plate welding method.
- the processes in blocks 801, 803 and 805 are the same as in respective blocks 501, 503 and 505 so a description of these processes will not be disclosed herein.
- a user utilizes a typical hot plate welding device that has a heated platen to melt the joining surfaces of the protective layer 105, optional sensor coating 107, sensor 103 onto the wall 101b (FIG. 2).
- the part halves of the protective layer 105, optional sensor coating 107, sensor 103 and the wall 101b are brought into contact with a precisely heated platen for a predetermined period, for example 5 seconds to 1 hour depending on the thickness of the materials of the protective layer 105, optional sensor coating 107, sensor 103 and wall 101b. After the plastic interfaces of the protective layer 105, sensor coating 107, sensor 103 and the wall 101b have melted, these parts are brought together to form a molecular, permanent, and often hermetic bond. A properly designed joint welded under precise process control often equals or exceeds the strength of any other part area.
- another wall 101c or multi-layer film is hot plated welded forming container 101, as in block 807, onto the combination protective layer 105, optional sensing coating 107, sensor 103 and wall 101b.
- this wall 101c has the same dimensions as wall 101b so peripheral edges of wall 101c are hermetically sealed onto the peripheral edges of wall 101b.
- At least one plastic tube or a plurality of plastic tubes are inserted between walls 101b and 101c and are hot plate welded to the walls 101b and 101c by utilizing the aforementioned heated platen as in block 807, and then this process ends. These plastic tubes serve as inserts to insert solution 101a into the container 101 and outlets for releasing solution 101a from the container 101.
- FIG. 9 is a flow chart that depicts how the sensors are incorporated into the container by employing an injection molding/in-mold decoration method.
- the processes in blocks 901 and 903 are the same as in respective blocks 503 and 505 so a description of these processes will not be disclosed herein.
- the protective layer 105, optional sensing coating 107, sensor 103 is stacked inside of a typical mold instead of only being stacked.
- a user utilizes a typical injection molding manufacturing technique to combine protective layer 105 with the optional sensor coating 107 and the wall 101b.
- injection molding is a manufacturing technique for making parts from thermoplastic materials.
- the wall 101b materials are injected at high pressure into a mold, which is the inverse of the desired shape.
- the mold is made typically by a mold maker or a toolmaker from metal, usually either steel or aluminum, and precision machined to form the features of the desired part. After solidification, the assembly of protective layer 105, optional sensing coating 107, sensor 103, and a relative thick injection molded wall 101b are made.
- another wall 101c and a plurality of tubes that acts as inlet and outlets for the solution 101a, as described above, are placed above the protective layer 105, optional sensor coating 107, sensor 103 and wall 101b, where heat is applied to melt the plurality of tubes and the wall 101c onto the wall 101b forming container 101.
- the wall 101c melts onto the periphery edges of the wall 101b to provide a hermetic seal forming the container 101 or bio-container 101, and then this process ends.
- a standard inductive heating method known to those of ordinary skill in the art may be used in place of conductive heating to melt the plurality of tubes onto the protective layer 105, optional sensor coating 107, sensor 103 and wall 101b.
- the process depicted in Figure 9 is useful for making 3 -dimensional bio-processing containers with relative thick walls. In other embodiments, various permutations of the processes depicted in
- Figure 5 to 9 are used in making the container with embedded sensor. More than one material welding and joining methods can be used at various stages of a container fabrication process. For example, in another embodiment of a process of making container with embedded sensors, the sensor to container attachment is accomplished by heat sealing of the sensor, while the sealing of the container material and tubes is accomplished by RF welding, In addition, various permutations of the container manufacturing process steps depicted in Figures 5 to 9 could be used. For example, yet in another embodiment of the process of making container with embedded sensors, largely continuous webs can be used in making the container with embedded sensor first, and the cutting to separate the as-made container is performed at the end of the process steps.
- FIG. 10a depicts a silicone tubing 1000 with differing diameters that produce differential pressure as fluid flows through it.
- FIG. 10b shows an exploded view of the silicone tubing of FIG. 10a embedded with RFID pressure sensors 1001 and 1003.
- RFID pressure sensors 1001 and 1003 operate in the same capacity as RFID sensor 103, described above, so a description of sensors 1001 and 1003 will not be disclosed herein.
- pressure RFID pressure sensors 1001 and 1003 provide the network impedance analyzer 108 (FIG. 1) located closed to the RFID pressure sensors 1001 and 1003 with pressure related information, for example, Pa indicates a pressure level of lOpsi, and Pb indicates a pressure level of 8psi.
- a fluid passing through smoothly varying constrictions of the silicone tubing 1000 experience changes in velocity and pressure. These changes can be used to measure the flow rate of the fluid. As long as the fluid speed is sufficiently subsonic
- P static pressure in Newton's per meter squared
- p density in kilograms per meter cubed
- v velocity in meters per second
- g gravitational acceleration in meters per second squared
- h height in meters
- Equation 2 Solving for the upstream velocity Va and multiplying by the cross-sectional area Aa gives the volumetric flow rate Q,
- C is found to depend on the Reynolds Number of the flow, and usually lies between 0.90 and 0.98 for smoothly tapering Venturis.
- the mass flow rate can be found by multiplying Q with the fluid density
- the diameters of the silicone tube 1001 upstream tubing Da and the down stream section Db are 20 cm and 4 cm respectively.
- the fluid density of the liquid flow inside the tubing is 1 kg/m 3 .
- the diameter of an upstream portion of silicon tubing 1000 or D 0 20cm
- the diameter of the silicone tubing 1000 neck or D b A cm
- fluid density or p l kg/m 3
- Discharge coefficient C O.98
- velocity A or V is 2.35 m/s.
- Pa indicates a pressure level of lOpsi and Pb indicates a pressure level of 8psi.
- the volume flow rate and the mass flow rate of the liquid flowing through the silicone tubing 1000 is calculated from equations 4 and 5 are .07m 3 /s and .07 kg/s, respectively.
- FIG. 12 shows an example of conductivity measurements being taken of the sensor.
- a RFID sensor 103 is shown attached to a surface 1201 that contains a fluidic test chamber , while the surface is being held by a right stand 1205.
- the left stand 1203 holds a pick-up antenna to pick up signal from the RFID sensor.
- Two tubings 1207 and 1209 are used to bring water or solution into and from the test chamber.
- the pick-up antenna is connected to the impedance analyzer 107a or a measurement device 111 (FIG. 1).
- FIG. 13 is a graphical representation for the RFID sensor 103 shown in FIG.
- FIG. 14 is a graphical representation of the RFID sensor response shown in FIG. 12 where the complex impedance is measured in relation to time (Fig. 13).
- this figure depicts a calibration curve as a conductivity response that was constructed from the responses of the RFID sensor 103 to different water samples with conductivities of 0.49, 7.78, 14.34, 20.28, 44.06 mS/cm.
- Figure 14 shows the sensor response as a function of water conductivity.
- Another embodiment for incorporation of the RFID sensors utilizes an adhesive layer that attaches sensors to the surface where the physical, chemical, or biological measurement should be made.
- a container (a disposable or reusable) 101 may be a micro titer plate.
- Individual wells of the micro titer plate or micro titer well plate have RFID sensors. These sensors are incorporated into the micro titer plate by any of the methods discussed above.
- RFID sensors can be also arranged in individual wells by dispensing. Often, it is critical to observe, detect, and sense effects of perturbation of the sample with a chemical, physical or biological perturbation. Nonlimiting examples include reagent addition, solvent addition, component addition, heating, stirring, cooling, exposure to electromagnetic radiation, and many others. These observations are monitored in real time with an array of RFID sensors 103 arranged in a micro titer plate.
- This invention provides a system for assembling a disposable bio-processing system where the user can employ the bio-processing system to separately measure parameters in a solution, then the user can discard the disposable bio-processing system.
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Abstract
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- 2007-11-20 CN CN200780043014.XA patent/CN101583866B/en active Active
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- 2007-11-20 EP EP07873622.0A patent/EP2084521B1/en active Active
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- 2007-11-20 WO PCT/US2007/085199 patent/WO2008127429A2/en active Application Filing
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2012
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021074193A1 (en) * | 2019-10-18 | 2021-04-22 | Universite D'aix-Marseille | Sensor with variation in impedance or inductance following a variation of a measurand |
FR3102242A1 (en) * | 2019-10-18 | 2021-04-23 | Universite D'aix-Marseille | SENSOR WITH VARIATION OF IMPEDANCE OR INDUCTANCE CONSECUTIVE TO A VARIATION OF A MEASURAND |
US11892489B2 (en) | 2019-10-18 | 2024-02-06 | Universite D'aix-Marseille | Sensor with variation in impedance or inductance following a variation of a measurand |
Also Published As
Publication number | Publication date |
---|---|
WO2008127429A3 (en) | 2008-12-24 |
RU2009115832A (en) | 2010-12-27 |
RU2012113401A (en) | 2013-10-20 |
CA2669224A1 (en) | 2008-10-23 |
CN101583866A (en) | 2009-11-18 |
JP2014132273A (en) | 2014-07-17 |
CN101583866B (en) | 2016-11-09 |
US20120206155A1 (en) | 2012-08-16 |
WO2008127429A2 (en) | 2008-10-23 |
RU2606170C2 (en) | 2017-01-10 |
EP2084521B1 (en) | 2018-06-20 |
RU2457472C2 (en) | 2012-07-27 |
JP2010510523A (en) | 2010-04-02 |
US20100021993A1 (en) | 2010-01-28 |
BRPI0718971A2 (en) | 2014-01-28 |
BRPI0718971B8 (en) | 2021-07-27 |
BRPI0718971B1 (en) | 2019-04-16 |
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